This lesson can be used for revision for the higher Maths GCSE. The examples are quick and concise with exam style questions, go to GCSE Maths
if you need more in-depth explanations.
How to use the Two-Way Tables
Example 1: 53 students attend an after school club and are able to choose from 3 activities: Football, Tennis or Running.
There are 24 boys. 22 students chose Football, of which 8 were girls. 8 boys chose tennis. 12 girls chose running.
How many students chose running?
Example 2: Janice asks 100 students if they like biology or chemistry or physics best.
38 of the students are girls. 21 of these girls like biology best. 18 boys like physics best. 7 out of the 23 students who like chemistry best are girls.
Work out the number of students who like biology best.
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